Interesting, I knew they were small, but not that small. It really is too bad that there is no push for a western rite OO church. I know there have been some inroads with the Antiochian church and their western rite, it seems like there would be some demand for OO too. I for one was drawn to the Coptic Orthodox Church when I was younger, but the very ethnocentric reality of the congregation made it difficult to move further.
Actually, there has been what you might call 'Western Rite Orthodoxy' among the Syriac Orthodox for well over a century, since at least (as far as I know) the conversion of
Antonio Francisco Xavier Alvarez, who was consecrated Mar Julius I in 1889 after converting to the Malankara Syriac Orthodox Church and taking his flock with him (he had previously been a priest of the Roman Catholic Church in Goa, India, but objected to the Portuguese rule over his people). At that time he was established with the permission of then Syriac Orthodox Patriarch Moran Mor Ignatius Peter IV (r. 1872-1894) to be "archbishop of the autocephalous Latin rite of Ceylon, Goa, and India." The original group that he founded continues on to this day in the
Brahmavar (Goan) Orthodox Church, which as I understand it has a relationship to its mother church that is somewhat analogous to the relationship of the British Orthodox Church and the Coptic Orthodox Church prior to this recent schism, being a particular diocese within the larger church rather than an autocephalous church as, say, the Coptic Orthodox or the Armenian Apostolic are as constituent churches of the Oriental Orthodox communion.
The Coptic Orthodox Church has been flirting in recent years with 'missionary churches' in the American/Westerner-specific sense (rather than the ordinary activities that we do in recognition of the reality that the West is not Egypt, such as having the majority of our Sunday services in English in America or the UK, Spanish in Bolivia and Mexico, etc). The soundness of this has been called into question in some quarters (and also the Orthodoxy...), but it nevertheless remains something that some people have a lot of hope in. As someone who was received
not into one of these self-consciously 'American' parishes, but into a regular parish and community (e.g., majority Egyptian, minority non-Egyptian, the non-Egyptians also including Ethiopians, Sudanese, Iraqis, Europeans, Mexicans, and apparently since I've left one Saudi woman, which...yeah...let's keep that going, by all means!

), I kinda don't get the point. They seem like 'dumbed down' (in the sense of a slightly less ornamented chant) versions of Coptic parishes, which...ehh...what's the point? Just go to a regular parish in America. It'll already be mostly-to-entirely in English, unless you happen to live in an area with a lot of recent immigrants (since we are still receiving immigrants from the homelands of the Church in Egypt, Sudan, and Libya, we need to balance the needs of the recently-arrived and the already here).
Liturgy at St. Paul "American Coptic Orthodox Church":
Notice all the Coptic still in there?
Liturgy at St. Mary & St. George Coptic Orthodox Church, Omaha, NE. (not self-consciously American):
Notice all the Coptic and Greek still in there? And also all the English?
I don't know. I guess the priest's accent is thicker at St. Mary & St. George's, but that's about it. It's the same thing, in terms of the actual liturgy. Yes, there's more Arabic in the second one, but the point is that this is what Coptic people think having a 'Western Rite' is: Just make everything in English with maybe some set Coptic/Greek. But that's already what we do in 'non-Western' (not 'American') parishes, which makes the whole thing redundant. And since no Coptic person I've ever met (and by this point I've met a lot) has
too much of a problem with getting rid of Arabic (with the older generation, there can be some resistance just because they grew up doing everything in Egypt in Arabic, but these same people will also curse the Arabs for ever having come to Egypt as a conquering force under Al 'As, so...whatever), they're generally fine with that.
Apparently the Ethiopians have started to have English liturgies, though their chant is so different it's still equally difficult for me to follow. Beautiful, though!
The Syriac Orthodox liturgy in English is flat out one of the most beautiful things I've ever heard.
I don't know how common it is to find Armenian Apostolic liturgies in English (I have seen one CD with deacon's parts in English, so I'm assuming you can find it, I just don't know where...Armenians are the one OO people I have yet to interact with in a worship context, though I did know several before coming to Orthodoxy). If it retains anything like the spirit of their native worship, which I have to assume it does (after all, the same Holy Spirit guides us all), it must be quite an electrifying experience.